"Magic 2010", +"can't attack", +!defender, +!detain, +!"you may change" (4)
Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
When enchanted creature becomes the target of a spell or ability, destroy Ice Cage.
Jackal Familiar can't attack or block alone.
Enchanted creature can't attack or block.
Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.
Serpent of the Endless Sea can't attack unless defending player controls an Island.
Gatherer works better in the Companion app!